If she rejects you and makes fun of you or does hurtful things like blabbing around the school however, she's not worth your heart or effort and I say move on.
You do not want to include any off-color jokes or wit that makes fun of the religious holiday.
Not only is cheerleading at a chess tournament deemed ridiculous (even the chess team makes fun of them now), but the Spartan cheers are also ridiculous.
Plaid Stallions makes fun of this decade by showcasing clothing catalog images and has a wonderful collection of vintage lingerie pictures to view.
As such, avoid humor that makes fun of any race, nationality or religion.